/Engine/Plugins/MovieScene/SequencerScripting/Source/SequencerScripting/Public/ExtensionLibraries/MovieSceneSectionExtensions.h
Find all channels that belong to the specifiedUMovieSceneSectionthat match the specific type. This will filter out any children who do not inherit from the specified type for you.
An array containing any key channels that match the type specified
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Sequencer|Section", Meta=(ScriptMethod, DeterminesOutputType="TrackType", DevelopmentOnly)) static [TArray](API\Runtime\Core\Containers\TArray)< UMovieSceneScriptingChannel * > GetChannelsByType ( [UMovieSceneSection](API\Runtime\MovieScene\UMovieSceneSection) * Section, [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< UMovieSceneScriptingChannel > ChannelType )